/*
 * CAD System for seamlessly constructing 2D and 3D scenes with aspects and motion
 * Copyright (C) 2013 Bernhard Haumacher and others
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.haumacher.draw5d.dataflow.core;

import de.haumacher.draw5d.dataflow.Markable;

/**
 * Base class for {@link Markable} implementations.
 * 
 * @author <a href="mailto:haui@haumacher.de">Bernhard Haumacher</a>
 * @version $Revision: 21 $ $Author: haumacher@googlemail.com $ $Date: 2013-07-27 18:49:19 +0000 (Sat, 27 Jul 2013) $
 */
public abstract class MarkableImpl implements Markable {

	private int _mark;
	
	@Override
	public int getMark() {
		return _mark;
	}

	@Override
	public int mark(int newValue) {
		int oldValue = _mark;
		_mark = newValue;
		return oldValue;
	}
	
}
